Adjusting mechanism for rakes.



PATENTED OCT. 13, 1903.

R. B. MAGPHAIL.

ADJUSTING MECHANISM FOR RAKES.

APPLICATION FILED JAN, 3, 1902.

2 SHEETSSHEET 1..

N0 MODEL.

No. 741,152. PATENTED OCT. 13, 1903. R B. MAGPHAIL.

ADJUSTING MECHANISM FOR RAKES.

APPLIGATION FILED JAN. 3, 1902.

2 SHEETS+SHEET 2.

N0 MODEL.

W1 asses- UNTTED STATES rammed October 13, 1903;

I PATENT union.

ROLAND B. MACPHAIL, OF BLUE ISLAND, ILLINOIS, ASSIGNOR TO TI-IE MCCORMICK HARVESTING MACHINE COMPANY, OF CHICAGO, ILLI- NOIS, A CORPORATION OF ILLINOIS.

ADJUSTING MECHANISM FOR RAKES;

SPECIFICATION forming part of Letters Patent No. 741,152, dated October 13, 1903.

Application filed January 3, 1902. Serial No. 88,353. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, ROLAND B. MACPHAIL, a citizen of the United States, residing at Blue Island, in the county of Cook and State of Illinois, have invented a new and useful Adjusting Mechanism for Rakes, of which the following is a specification.

This invention relates to adjusting mechanism for rakes.

The object of the invention isto provide means which are simple in construction and efficient in operation for adjusting rake-teeth to varying heights.

A further object of the invention is to provide means for elevating the rake-teeth in a simple and efficient manner out of dangerof contact with the ground during the transportation of the machine over ground where it is desired not to use the rake.

Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location, and arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawings, and finally pointed out in the appended claims.

Referring to the accompanying drawings, and to the various views and reference-signs appearing thereon,Figure l is a broken view in plan of a rake, showing the application thereto of an adjusting mechanism embodying the principles of my invention. Fig. 2 is a broken detail view in section on the line 2 2, Fig. 1, looking in the direction of the arrows. Fig. 3 is a broken detail view, on a larger scale, in longitudinal section of the adjusting attachment. Fig. tis a view similar to Fig. 3, showing the adjusting attachment in operative re lation with respect to the adj usting-bar. Fig. 5 is a transverse sectional view 011 the line 5 5, Fig. I, looking in the direction of the arrows. Fig. 6 is a broken detail view in section on the line 6 6 of Fig. 3 looking in the direction of the arrows.

The same part'is designated by the same reference-sign wherever it occurs throughout the several views.

In the practical operation of rakes it is desirable to provide means whereby the raketeeth may be readily adjusted to accommodate or suit any desired condition of work required to be performed. It is also desirable to provide means whereby the rake-teeth may be elevated out of danger of contact with the ground during the transportation of the machine to and from the place Where it is required to be used. It is among the special purposes of my present invention to provide a construction which is simple and efficient for accomplishing these desirable objects.

Referring to the accompanying drawings, reference-sign A designates the axle-bar of a rake, upon which are mounted the wheels B and the frame 0 in the usual manner. These parts may be of any desired type and construction of machine, wherein the axle-bar A, which also constitutes the rake bar upon which the rake-teeth D are supported, is axially adjustable to'vary or adjust the height of the points of the rake-teeth. Suitably connected to the rake-bar A is a casting E, upon which is loosely pivoted a handle F, constituting the adjusting or dumping handle or lever. The lever F may be loosely and .pivotally connected to casting E in any suitable manneras, for instance, by means of a bolt G, passing through said casting E and operating through an elongated or conical opening through 1ever F, as clearly shown in Figs. 3 and 4, whereby a free rocking movement of lever F is permitted. A pin or stud H is carried by lever F, said pin or stud adapted to be inserted in one or another of a series of openings or holes J in an adjusting-bar K. The adjusting-bar K is pivotally connected at one end to the frame C of the machine and its other end is arranged to operate loosely stance, and in the form shown, but to which my invention is not limited, a spring M is mounted in a recess N of casting E and bears against lever F, as clearly shown in Figs. 3

and 4. The tension of this spring normally operates to rock lever F about its pivot-bolt G and in a direction to maintain the pin or stud H in engagement with respect to a hole in adjusting-bar K, the normal position of said lever being shown in Fig. 4. The desired disengagement of said pin or stud with a hole of adjusting-bar K is efiected by latorally shifting or swinging lever F against the action of the spring-tension. If desired and in order to lock lever F in position with the pin or stud H, engaging in a slot or hole in adjusting-bar K, and to prevent accidental disengagement of the parts, a'dog P may be pivotally mounted upon a convenient part of casting E and arranged to be swung into position to engage behind lever F to lock or hold the same in the desired position to maintain pin or stud H in engagement with adjusting-bar K. In Fig. 4 I have shown the dog P in locking position with the-lever F, held in position to maintain the pin or stud H, carried thereby, in engagement with a hole or opening through arm K. In order to effect a detachment of lever F from bar K, the dog P is released from the engaging position thereof, as shown in Fig. 4C, and lever F is rocked or swung about its pivot by hand or otherwise against the tension of spring M and in a direction to withdraw pin or stud H.

The operation of my invention is exceedingly simple and Will be readily understood. When it is desired to adjust the height of the rake-teeth, the lever F is released from engaging relation with arm K and the rakebar A is axially rotated, the lever F and the casting E forming a lever for effecting such axial rotations or adjustment of the rake-bar until any desired hole J in arm K is brought into proper relation to receive the pin or stud H of lever F, and when this point is reached the pin or stud H is permitted to project through said opening or hole in arm K, thereby locking the rake-bar A in its adjusted position. In this manner any desired height of adjustment of the rake-teeth may be effected, and the parts may be locked in their adjusted position by the dog P. When it is desired to completely elevate the rake- -teethas, for instance, while the machine is advancing along'a road or over ground which it is desired not to rakean additional hole or opening Q is formed in bar K at a considerable distance from the end thereof, and the rakebar A is axially adjusted or rotated a distance sufficient to bring opening or hole Q into register with the locking-pin of lever F, thereby locking and holding the rake-teeth in elevated position. The keeper or sleeve L, through which arm K operates, is swivelly connected to casting E. This may be accomplished in any suitable or convenient manner-as,for instance, by providing the sleeve or keeper L with a lateral extension R, provided with a flange S. This lateral extension is arranged to operate through an opening formed in casting E. This opening is counterbored on the inner face of said casting to receive the flange S, and a passage T may be formed to permit the flange S and extension R to be inserted in place, thereby locking sleeve or keeper L to the casting, but permitting said keeper or sleeve to rock to accommodate the swinging movement of adjusting-arm K.

From the foregoing description it will be seen that the lever F combines in itself not only a portion of the means for locking the rake-bar A in its axially-adjusted positions, but also aifords means for rocking said rakebar to its adjusted positions, thus avoiding the expense of an additional rocking-lever for said bar. It will also be obvious that the same lever F may be employed fordumping the rake whenever desired. It is obvious that the lever F may be arranged to extend in any suitable or convenient position relative to the drivers seat W to be conveniently grasped and manipulated by the driver without leaving his seat. A rake-adj usting mechanism such as above described is simple in construction and economical in manufacture and af: fords convenient means for effecting the de sired objects.

Many variations and changes in the details of construction and arrangement would readily suggest themselves to persons skilled in the art and still fall within the spirit and scope of my invention. I do not desire, therefore, to be limited or restricted to the exact details of construction shown and described; but,

Having now set forth the object and nature of my invention and a construction embodying the same, What I claim as new and useful and of my own invention, and desire to secure by Letters Patent, is-

1. The combination with an axially-rocking rake-bar, of an adj usting-lever pivotally mounted on said bar to swing in a plane containing said bar, a pin or stud carried by said lever, and an arm connected to the framework and arranged to be engaged by said pin or stud, whereby said lever may be swung rela tively to said bar to disengage said pin or stud from said arm and then swung to axially rotate or adjust said bar, as and for the purpose set forth.

2. The combination with a rake-bar, of a casting mounted thereon, a lever pivotally mounted upon said casting to rock relatively thereto and in a plane containing said bar, an adj usting-arm connected to the framework of the machine, and detachable connections controlled by the relative swinging movement of said lever for locking said lever and arm, as and for the purpose set forth.

3. The combination with a rake-bar, of a casting mounted thereon, a lever pivotally mounted upon said casting for swinging movement relative thereto, a pin or stud carried by said lever, an adj usting-arm connected to the framework of the machine and arranged to be detachably engaged by said pin or stud when said lever is relatively swung with respect to said casting, and means for imposing ICC) a tension upon said lever to hold said pin or stud in engaging relation with respect to'said arm, as and for the purpose set forth.

4. The combination with a rake-bar, of a casting connected thereto, a keeper pivotally mounted upon said casting, an adjusting-arm connected to the framework of the machine and operating freely through said keeper, and an adjusting-lever movably mounted upon said casting and arranged to detachably en,- gage said arm, as and for the purpose set forth.

5. The combination with a rake-bar, of a casting connected thereto, a keeper carried by said casting, an adjusting-arm connected to the framework of the machine and operatin g through said keeper, a lever movably mounted upon said casting and arranged to detachably engage said arm, and means for detachably locking said lever in engaging relation with respect to said arm, as and for the purpose set forth.

6. The combination with a rake-bar, of a casting connected thereto, a lever pivotally mounted upon said casting to swing relatively thereto, a pin or stud carried by said lever, an adjusting-arm connected to said framework and having holes or openings therethrough with which said pin or stud cooperates to hold said lever and casting in adj nsted position, whereby by rocking said lever upon said casting said pin or stud is inserted in or retracted from engaging relation with respect to said holes or openings, as and for the purpose set forth.

7 The combination with a rake-bar, a cast ing secured thereto, a lever mounted upon said casting for movement relatively thereto, a pin or stud carried by said lever, an adj usting-arm arranged to be engagedby said pin or stud, a spring operating upon said lever to maintain said pin or stud in engaging relation with respectto said arm, and a dog pivotally mounted upon said casting and arranged to engage said lever to lock the same, as and for the purpose set forth.

8. The combination with a rake-bar, of a casting mounted thereon and having an opening therethrough, a keeper provided with an extension arranged to project through said opening and having a lockingflange,whereby said keeper is pivotally mounted upon said casting, an adjustiug-arn1 connected to the framework of the machine and operating through said keeper, said arm provided with holes or openings therethrough, an adj ustinglever movably mounted upon said casting and having a pin or stud arranged to enter the holes or openings in said arm for holding said casting and bar in adjusted position, as and for the purpose set forth.

In Witness whereof I have hereunto set my hand this 26th day of December, 1901, in the presence of the subscribing witnesses.

ROLAND B. MAGPI-IAIL.

Witnesses:

E. O. SEMPLE, S. E. DARBY. 

